Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
010043lightly pollutedexcellent11excellent
00005excellentexcellent11excellent
230030goodexcellent21excellent
220020goodexcellent31excellent
210017goodexcellent31excellent
200017goodexcellent31excellent
190022goodexcellent41excellent
180020goodexcellent31excellent
170017goodexcellent31excellent
160019goodexcellent31excellent
150013goodexcellent21excellent
140010excellentexcellent21excellent
130010excellentexcellent21excellent
120016goodexcellent31excellent
110015goodexcellent31excellent
100018goodexcellent31excellent
090017goodexcellent41excellent
080031goodexcellent41excellent
070047lightly pollutedexcellent41excellent
060052lightly pollutedexcellent41excellent
050060lightly pollutedexcellent51excellent
040070moderately pollutedexcellent61excellent
030077moderately pollutedexcellent91excellent
020078moderately pollutedexcellent101excellent